Ferromagnetic (FM) microstructures in the FM metallic phase of La0.825Sr0.175MnO3 were examined by means of Lorentz transmission electron microscopy (Lorentz TEM) and small-angle electron diffraction (SAED). Microstructures of FM domains depend strongly on the crystal structures. The structural phase transition at 185 K accompanies with a drastic change of 180 degree FM domain structures from macroscopic wide domains to striped narrow domains. Lorentz TEM and SAED experiments revealed that a distribution of the magnetization in the striped FM domains is non-uniform and locally fluctuated.

1.
Colossal Magnetoresistive Oxides
, edited by
Y.
Tokura
(
Gordon and Breach
,
Amsterdam
,
2000
).
2.
E.
Dagotto
,
Science
309
,
257
(
2005
).
3.
A.
Urushibara
 et al,
Phys. Rev. B
51
,
14103
(
1995
).
4.
Y.
Tokura
,
Rep. Prog. Phys.
69
,
797
(
2006
).
5.
S.
Mori
,
T.
Asaka
, and
Y.
Matsui
,
J. Electron Microscopy
51
,
225
(
2002
).
6.
M.
Konoto
 et al,
Appl. Phys. Lett.
84
,
2361
(
2004
).
7.
T.
Asaka
,
T.
Kimura
,
T.
Nagai
,
X. Z.
Yu
,
K.
Kimoto
,
Y.
Tokura
, and
Y.
Matsui
,
Phys. Rev. Lett.
95
,
227204
(
2005
).
8.
D. I.
Golosov
,
Phys. Rev. B
67
,
064404
(
2003
).
9.
R. H.
Wade
and
J.
Silcox
,
Phys. Status Solidi
19
,
63
(
1967
).
10.
R. H.
Wade
,
Phys. Status Solidi
19
,
847
(
1967
).
11.
J. N.
Chapman
,
Philos. Mag.
32
,
527
(
1975
);
J. N.
Chapman
,
Philos. Mag.
32
,
541
(
1975
).
12.
M. J.
Goringe
and
J. P.
Jakubovics
,
Philos. Mag.
15
,
393
(
1967
).
13.
P. J.
Grundy
and
R. S.
Tebble
,
Adv. Phys.
17
,
153
(
1968
).
You do not currently have access to this content.